Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Description & Operation: Notes
This vehicle has two module communications networks. A BUS which consists of a pair of twisted wires is used to transfer information between modules. The BUS consists of a (+) circuit No. 914 (Tan/Orange wire) and a (-) circuit No. 915 (Pink/Light Blue wire). The BUS is routed only to the Powertrain Control Module (PCM). Terminal No. 7 (Light Blue/White wire) of the DLC goes directly to 4-Wheel Anti-lock Brake (4WABS) module and air bag diagnostic monitor (also referred to as Electronic Crash Sensor (ECS) module). This wire is referred to as the ISO 9141 communication link. For module locations, see COMPONENT LOCATIONS TABLE. In the event that a system failure exists, a Diagnostic Trouble Code (DTC) will be stored in the module. A New Generation Star (NGS) scan tester and Data Link Connector (DLC) may be used for retrieving and clearing DTCs from the modules. DTC may be used for system diagnosis.
| Component | Location | ||
|---|---|---|---|
| Air Bag Diagnostic Monitor (1) | Behind Right Kick Panel | ||
| Data Link Connector (DLC) | Below Driver's Side Of Instrument Panel, To Right Of Steering Column | ||
| Powertrain Control Module (PCM) | Left Rear Of Engine Compartment Near Brake Master Cylinder | ||
| 4-Wheel Anti-Lock Brake (ABS) Module | On Left Front Frame Rail | ||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.